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33 results on '"Rodallec, Mathieu"'

1. “National survey for preliminary evaluation of neuroradiological protocols in patients with infective endocarditis”

Author

Picherit, Alexandre, Kerleroux, Dr Basile, Forestier, Géraud, Marnat, Gaultier, Boutet, Claire, Ifergan, Héloïse, Hak, Jean-François, Guedon, Alexis, Lecler, Augustin, Heck, Olivier, Paya, Christophe, Burel, Julien, Masy, Matthieu, Lauvin, Marie-Agnès, Rodallec, Mathieu, Eugene, Francois, Zhu, François, Pop, Raoul, Boucebci, Samy, Soize, Sébastien, Boulouis, Grégoire, and Bourcier, Romain

Published
2023
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6. Location of the transition zone in CT of small-bowel obstruction: added value of multiplanar reformations

Author

Hodel, Jerome, Zins, Marc, Desmottes, Loic, Boulay-Coletta, Isabelle, Jullès, Marie, Nakache, Jean, and Rodallec, Mathieu

Abstract

Abstract: Purpose: To assess the additional value of multiplanar reformations (MPR) in comparison with axial images alone for location of the transition zone in CT of mechanical small-bowel obstruction (SBO). Materials and methods: Sixty-nine consecutive patients with mechanical SBO underwent 16-slice multi detector row CT (MDCT). The gold standard for the precise location of the transition zone was established by two experienced abdominal radiologists, unblinded to clinical and surgical reports, reviewing all CT examinations. On a workstation, two blinded readers independently located the transition zone using first axial slices alone and then 1 month later MPR (axial, coronal, sagittal and oblique views) according to a three-point confidence scale. Diagnostic accuracy and mean confidence score were evaluated for both the transverse and multiplanar data sets. Results: Accuracy of transition zone location for reader 1 and reader 2 was 86% and 84% with axial slices alone, and by using MPR 93% (significant: P = 0.03) and 90% (not significant: P = 0.08), respectively. Mean confidence score was significantly increased for both readers using MPR: 0.3 higher (P = 0.0001) and 0.37 higher (P = 0.0001) respectively. Conclusion: MPR can increase both accuracy and confidence in the location of the transition zone in CT of SBO.

Published
2024
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15. [18F]FDG PET may differentiate cerebral amyloid angiopathy from Alzheimer's disease.

Author

Bergeret, Sébastien, Queneau, Mathieu, Rodallec, Mathieu, Curis, Emmanuel, Dumurgier, Julien, Hugon, Jacques, Paquet, Claire, Farid, Karim, and Baron, Jean‐Claude

Subjects
CEREBRAL amyloid angiopathy, ALZHEIMER'S disease, MAGNETIC resonance imaging, POSITRON emission tomography, COGNITION disorders
Abstract

Background: Cerebral amyloid angiopathy (CAA) is a frequent cause of both intracerebral hemorrhage (ICH) and cognitive impairment in the elderly. Diagnosis relies on the Boston criteria, which use magnetic resonance imaging markers including ≥2 exclusively lobar cerebral microbleeds (lCMBs). Although amyloid positron emission tomography (PET) may provide molecular diagnosis, its specificity relative to Alzheimer's disease (AD) is limited due to the prevalence of positive amyloid PET in cognitively normal elderly. Using early‐phase 11C‐Pittsburgh compound B as surrogate for tissue perfusion, a significantly lower occipital/posterior cingulate (O/PC) tracer uptake ratio in probable CAA relative to AD was recently reported, consistent with histopathological lesion distribution. We tested whether this finding could be reproduced using [18F]fluorodeoxyglucose (FDG)‐PET, a widely available modality that correlates well with early‐phase amyloid PET in both healthy subjects and AD. Methods: From a large memory clinic database, we retrospectively included 14 patients with probable CAA (Boston criteria) and 21 patients with no lCMB fulfilling AD criteria including cerebrospinal fluid biomarkers. In all, [18F]FDG‐PET/computed tomography (CT) was available as part of routine care. No subject had a clinical history of ICH. Regional standardized [18F]FDG uptake values normalized to the pons (standard uptake value ratio [SUVr]) were obtained, and the O/PC ratio was calculated. Results: The SUVr O/PC ratio was significantly lower in CAA versus AD (1.02 ± 0.14 vs. 1.19 ± 0.18, respectively; p = 0.024). Conclusions: Despite the small sample, our findings are consistent with the previous early‐phase amyloid PET study. Thus, [18F]FDG‐PET may help differentiate CAA from AD, particularly in cases of amyloid PET positivity. Larger prospective studies, including in CAA‐related ICH, are however warranted. [ABSTRACT FROM AUTHOR]

Published
2021
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16. Neurosyphilis : un cas d’atteinte cérébro-spinale

Author

Mathieu Zuber, Hélène Brasme, Rodallec Mathieu, and Arnaud Roumi

Subjects
Neurology, Neurology (clinical)
Abstract

Introduction La syphilis peut toucher a sa phase tardive le systeme nerveux central en differentes localisations, donnant des tableaux cliniques varies. Nous reportons un cas d’atteinte bifocale hippocampique et medullaire. Observation Un patient de 41 ans a ete adresse en neurologie pour cephalees d’aggravation progressive avec phosphenes, ralentissement psychomoteur, troubles de l’equilibre et troubles vesicosphincteriens. L’examen clinique montrait une marche ataxique avec signe de Romberg positif, un syndrome pyramidal de l’hemicorps gauche, une hypopallesthesie des membres inferieurs et un niveau sensitif T10. L’IRM cerebrale a mis en evidence une formation ovalaire hemorragique temporale interne gauche en hypersignal T1/hyposignal T2*, se rehaussant a l’injection et l’IRM medullaire une myelite œdemateuse bifocale T2–T4 et T6–T7 touchant les cordons lateraux et posterieurs. L’examen du LCR a revele une meningite lymphocytaire avec 130 elements/mm3 (90 % de lymphocytes) avec proteinorachie a 1,21 g/L. La serologie TPHA/VDRL plasmatique etait positive avec respectivement des titrages au 1/5120 et 1/128. Dans le LCR, VDRL et PCR syphilitique etaient positifs. Les examens a la recherche d’une cause immunologique ou infectieuse autre etaient tous normaux. Des lors, le diagnostic de neurosyphilis a ete retenu. Le patient a ete traite par penicilline IV puis par cephalosporines pour une duree totale de 4 semaines, permettant une regression clinico-biologique. Discussion La syphilis est une maladie venerienne de repartition mondiale. Le diagnostic biologique de neurosyphilis active repose sur les anomalies biologiques du LCR. Le diagnostic radiologique est difficile, les anomalies cerebrales decrites dans la litterature etant classiquement des gommes parenchymateuses cerebrales. Il peut exister, comme chez notre patient, des atteintes aspecifiques preferentiellement temporales, volontiers hemorragiques. Conclusion Le tableau clinique et radiologique de neurosyphilis peut etre varie. Chez notre patient, la particularite etait l’atteinte clinique et radiologique bifocale, avec lesions cerebrales et medullaires concomitantes.

Published
2018
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17. Diabetes Mellitus and Cognition

Author

Frison, Eric, Proust-Lima, Cecile, Mangin, Jean-Francois, Habert, Marie-Odile, Bombois, Stephanie, Ousset, Pierre-Jean, Pasquier, Florence, Hanon, Olivier, Paquet, Claire, Gabelle, Audrey, Ceccaldi, Mathieu, Annweiler, Cédric, Krolak-Salmon, Pierre, Béjot, Yannick, Belin, Catherine, Wallon, David, Sauvee, Mathilde, Beaufils, Emilie, Bourdel-Marchasson, Isabelle, Jalenques, Isabelle, Chupin, Marie, Chêne, Geneviève, Dufouil, Carole, Allard, Michèle, Andrieu, Sandrine, Anthony, Pierre, Astier, Christine, Augier, Alexandre, Auguste, Nicolas, Auriacombe, Sophie, Avet, John, Bailon, Olivier, Barral, Fabrice-Guy, Barré, Jean, Barthelaix, Annick, Bayle, Catherine, Beauchet, Olivier, Belkacem, Samia, Ben Salem, Douraied, Bennys, Karim, Bera, Géraldine, Berger, Eric, Berger, Marc G, Bergouin, Emilie, Bertin-Hugault, François, Bertrand, Guillaume, Bertrand, François-Xavier, Beze, Catherine, Boilet, Valérie, Bonafé, Alain, Boudali, Yasmina, Bouhladour, Hatem, Boully, Clémence, Bouteloup, Vincent, Boutet, Claire, Bracard, Serge, Brangier, Antoine, Brillet, Pierre-Yves, Caillard, Laure, Calvas, Fabienne, Camus, Agnès, Camus, Vincent, Canaple, Sandrine, Carpentier, Antoine, Cassagnaud, Pascaline, Cattin, Françoise, Chamard, Ludivine, Chanalet, Stéphane, Chastan, Mathieu, Chauvelier, Sophie, Chauvire, Valérie, Cheriet, Samia, Clotagatide, Anthony, Cognat, Emmanuel, Cohen, Lora, Constans, Jean-Marc, Coste, Marie-Hélène, Cottier, Jean-Philippe, Cotton, François, Couret, Isabelle, Couturier, Olivier-François, Cowppli-Bony, Pascale, Cressot, Véronique, Crétin, Benjamin, Danaila, Keren, Darcourt, Jacques, Dartigues, Jean-François, Dascalita, Ana-Maria, David, Renaud, De Petigny, Xavier, De Verbizier-Lonjon, Delphine, Decousus, Marielle, Defouilloy, Isabelle, Delmaire, Christine, Delrieu, Julien, Demuyinck, Catherine, Deramecourt, Vincent, Deramond, Hervé, Desmidt, Thomas, Desruet, Marie-Dominique, Detour, Julien, Devendeville, Agnès, Didic, Mira, Doireau, Maritchu, Santos, Antonio Dos, Douillet, Patrice, Du Boisgueheneuc, Foucaud, Dubail, Delphine, Ducroq-Ducastaing, Laure, Dumurgier, Julien, Dupuy, Diane, Duron, Emmanuelle, Dygai-Cochet, Inna, Eder, Véronique, Epelbaum, Stéphane, Etcharry-Bouyx, Frédérique, Fagret, Daniel, Faisant, Catherine, Farid, Karim, Fédérico, Denis, Felician, Olivier, Fernandez, Philippe, Fosse, Pacôme, Foubert-Samier, Alexandra, Franck, Isabelle, Galitzky, Monique, Gallazzini-Crepin, Céline, Gantchev, Radka, Garbarg-Chenon, Laurence, Gautier, Guillaume, Gerardin, Emmanuel, Gervais, Claire, Getenet, Jean-Claude, Girard, Nadine, Giraud, Fabienne, Girtanner, Chantal, Gissot, Valérie, Grangeon, Caroline, Grucker, Daniel, Guedj, Eric, Gueriot, Claude, Guilhermet, Yves, Guillevin, Rémy, Haffen, Sophie, Hannequin, Didier, Harston, Sandrine, Hitzel, Anne, Hommet, Caroline, Hossein-Foucher, Claude, Hubele, Fabrice, Jacquin-Piques, Agnès, Jean, Betty, Jenn, Joanne, Joly, Laure, Jonveaux, Thérèse, Julian, Adrien, Kas, Aurélie, Kearney-Schwartz, Anna, Keles, Alice, Kelly, Antony, Keromnes, Nathalie, Koric, Lejla, Krainik, Alexandre, Kremer, Stéphane, Labourée, Florian, Lacoeuille, Franck, Lala, Francoise, Lamy, Chantal, Laplanche, Jean-Louis, Launay, Cyrille, Lehericy, Stéphane, Lehmann, Sylvain, Lenoir, Hermine, Levy, Marcel, Libercier, Stéphanie, Mackowiak-Cordoliani, Marie-Anne, Magnin, Eloi, Makaroff, Zaza, Marantidou, Athina, Marcet, Isabelle, Marelli, Cécilia, Marilier, Sophie, Martin, Idalie, Martinaud, Olivier, Martin-Hunyadi, Catherine, Medjoul, Aïcha, Merlet, Isabelle, Mestas, Danielle, Meyer, Marc-Etienne, Michel, Jean-Marc, Michon, Agnès, Migeon-Duballet, Isabelle, Mondon, Karl, Morgat, Clément, Moullart, Véronique, Moussard, Christian, Mouton, Aurélie, Namer, Izzie Jacques, Niewiadomski, Georges, Nivaggioni, Guillaume, Noblet, Marie, Nonent, Michel, Nourhashemi, Fati, Oesterle, Hélène, Orvoen, Galdric, Pallardy, Amandine, Pare, Pierre-Yves, Pasco, Anne, Payoux, Pierre, Pays, Cécile, Pellegrin, Isabelle, Perdrisot, Rémy, Perin, Bertille, Perret-Guillaume, Christine, Petyt, Grégory, Philippi, Nathalie, Pinganaud, Geneviève, Plichart, Matthieu, Pop, Gabriel, Puel, Michèle, Queneau, Mathieu, Querellou, Solène, Quillard-Muraine, Muriel, Quipourt, Valérie, Rachez, Chloé, Razzouk-Cadet, Micheline, Rigaud, Anne-Sophie, Robin-Ismer, Hélène, Rodallec, Mathieu, Rolland, Yves, Rollin-Sillaire, Adeline, Rouaud, Olivier, Roubaud, Caroline, Rouch, Isabelle, Roux, Julie, Sacco, Guillaume, Salaun, Pierre-Yves, Salmon, François, Sanchez, Alicia, Santiago-Ribeiro, Maria-Joao, Sarciron, Alain, Sastre-Hengan, Nathalie, Scheiber, Christian, Schneider, Anne-Marie, Semah, Franck, Serra, Amélie, Seux, Marie-Laure, Sordet-Guépet, Hélène, Soto, Maria Eugenia, Tafani, Mathieu, Tanguy, Jean-Yves, Taroux, Michael, Teichmann, Marc, Terrat, Catherine, Thabet, Jamila, Thalamas, Claire, Thomas-Anterion, Catherine, Troussière, Anne-Cécile, Ursu, Renata, Vera, Pierre, Vercelletto, Martine, Vercruysse, Olivier, Verger, Antoine, Viau, Philippe, Videau, Marie-Neige, Voisin, Thierry, Wagemann, Nathalie, Waissi-Sediq, Aziza, Xie, Jing, Yeni, Nathanaëlle, Zanca, Michel, and Zinszner, Jean

Published
2021
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18. Imagerie conventionnelle dans l’épilepsie

Author

Mellerio, Charles, primary, Roca, Pauline, additional, Chassoux, Francine, additional, Devaux, Bertrand, additional, Rodallec, Mathieu, additional, Meder, Jean François, additional, and Oppenheim, Catherine, additional

Published
2016
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21. Comparison of 3D multi-echo gradient-echo and 2D T2* MR sequences for the detection of arterial thrombus in patients with acute stroke

Author

Hodel, Jérôme, primary, Leclerc, Xavier, additional, Khaled, Wassef, additional, Tamazyan, Ruben, additional, Rodallec, Mathieu, additional, Gerber, Sophie, additional, Blanc, Raphael, additional, Benadjaoud, Mohamed, additional, Lambert, Oriane, additional, Rabrait, Cécile, additional, Zuber, Mathieu, additional, Rahmouni, Alain, additional, and Zins, Marc, additional

Published
2013
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23. Susceptibility-weighted angiography for the detection of high-flow intracranial vascular lesions: preliminary study

Author

Hodel, Jérôme, primary, Blanc, Raphaël, additional, Rodallec, Mathieu, additional, Guillonnet, Antoine, additional, Gerber, Sophie, additional, Pistocchi, Silvia, additional, Sitta, Rémi, additional, Rabrait, Cécile, additional, Zuber, Mathieu, additional, Pruvo, Jean-Pierre, additional, Zins, Marc, additional, and Leclerc, Xavier, additional

Published
2012
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33. Optimization of bacterial diagnosis yield after needle aspiration in immunocompetent adults with brain abscesses.

Author

de Lastours V, Kalamarides M, Leflon V, Rodallec M, Vilgrain V, Nicolas-Chanoine MH, and Fantin B

Subjects
Adult, Aged, Aged, 80 and over, Anti-Bacterial Agents therapeutic use, Biopsy, Needle, Brain Abscess diagnosis, Combined Modality Therapy, Female, Humans, Magnetic Resonance Imaging, Male, Middle Aged, Neurosurgical Procedures adverse effects, Postoperative Complications etiology, Reoperation, Stereotaxic Techniques, Suction methods, Tomography, X-Ray Computed, Treatment Outcome, Brain Abscess microbiology, Brain Abscess surgery, Neurosurgical Procedures methods
Abstract

Objective: Brain abscesses (BA) are life threatening, even in immunocompetent patients, in part because microbiological diagnosis is often lacking and management is empirical. Recent epidemiological changes make it all the more important to have a precise microbiological diagnosis. Our purpose was to evaluate the efficacy of a strategy aimed at obtaining a microbiological diagnosis in immunocompetent patients presenting with suspected BAs., Methods: We conducted a cohort study including all consecutive patients suspected of having BAs according to clinical, biological, and radiological findings. Severely immunocompromised patients were excluded. Aspiration was performed free-hand in patients with superficial abscesses (<1 cm depth from the cortical surface) and under stereotactic guidance in patients with deep-seated abscesses. Microbiological diagnosis was optimized, using the best aerobic and anaerobic growth conditions, blood culture bottles inoculated in the operating room, and molecular biology techniques if necessary. Antibiotic treatment was adapted according to the findings., Results: Twenty-six patients were suspected of having BAs during the study period. Twenty-four patients benefited from aspiration (stereotactic puncture in 3 cases), which was safe, confirmed the diagnosis of BAs, and yielded microbiological diagnosis in all cases, even in those patients who had previously received antibiotics (n = 8; 33%). In 10 patients (42%), microbiological results led to a different choice in antibiotic therapy than the recommended empirical regimen., Conclusion: Microbiological diagnosis can be obtained in all cases of BA. This is achieved by the conjunction of rapid needle aspiration and the optimization of microbiological diagnosis resulting from fast management of the surgical specimen, good anaerobic culture conditions, and the use of blood culture bottles and molecular biology techniques when appropriate. Moreover, it is of clinical and therapeutic interest when BAs are suspected in immunocompetent patients.

Published
2008
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